68517373 has 2 divisors, whose sum is σ = 68517374. Its totient is φ = 68517372.

The previous prime is 68517367. The next prime is 68517431. The reversal of 68517373 is 37371586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41757444 + 26759929 = 6462^2 + 5173^2 .

It is a cyclic number.

It is not a de Polignac number, because 68517373 - 2⁵ = 68517341 is a prime.

It is a super-2 number, since 2×68517373² = 9389260805642258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68517353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34258686 + 34258687.

It is an arithmetic number, because the mean of its divisors is an integer number (34258687).

Almost surely, 2^68517373 is an apocalyptic number.

It is an amenable number.

68517373 is a deficient number, since it is larger than the sum of its proper divisors (1).

68517373 is an equidigital number, since it uses as much as digits as its factorization.

68517373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 68517373 is about 8277.5221533983. The cubic root of 68517373 is about 409.1980616626.

The spelling of 68517373 in words is "sixty-eight million, five hundred seventeen thousand, three hundred seventy-three".